/*
*Copyright (c) 2005-2013, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
*WSO2 Inc. licenses this file to you under the Apache License,
*Version 2.0 (the "License"); you may not use this file except
*in compliance with the License.
*You may obtain a copy of the License at
*
*http://www.apache.org/licenses/LICENSE-2.0
*
*Unless required by applicable law or agreed to in writing,
*software distributed under the License is distributed on an
*"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
*KIND, either express or implied.  See the License for the
*specific language governing permissions and limitations
*under the License.
*/

package org.wso2.carbon.identity.oauth2.token.handlers;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.identity.oauth2.IdentityOAuth2Exception;
import org.wso2.carbon.identity.oauth2.token.OAuthTokenReqMessageContext;

/**
 * Grant Handler for Grant Type : client_credentials
 */
public class ClientCredentialsGrantHandler extends AbstractAuthorizationGrantHandler {

    private static Log log = LogFactory.getLog(ClientCredentialsGrantHandler.class);

    public ClientCredentialsGrantHandler() throws IdentityOAuth2Exception {
        super();
    }

    @Override
    public boolean validateGrant(OAuthTokenReqMessageContext tokReqMsgCtx)
            throws IdentityOAuth2Exception {
        // By this time, we have already validated client credentials.
        tokReqMsgCtx.setScope(tokReqMsgCtx.getOauth2AccessTokenReqDTO().getScope());
        return true;
    }
}
